| /* |
| * Copyright (c) 2012, 2018, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| * |
| */ |
| |
| #ifndef SHARE_VM_JFR_PERIODIC_JFROSINTERFACE_HPP |
| #define SHARE_VM_JFR_PERIODIC_JFROSINTERFACE_HPP |
| |
| #include "jfr/utilities/jfrAllocation.hpp" |
| #include "utilities/globalDefinitions.hpp" |
| |
| class CPUInformation; |
| class EnvironmentVariable; |
| class SystemProcess; |
| |
| class JfrOSInterface: public JfrCHeapObj { |
| friend class JfrRecorder; |
| private: |
| class JfrOSInterfaceImpl; |
| JfrOSInterfaceImpl* _impl; |
| |
| JfrOSInterface(); |
| ~JfrOSInterface(); |
| bool initialize(); |
| static JfrOSInterface& instance(); |
| static JfrOSInterface* create(); |
| static void destroy(); |
| |
| public: |
| static int cpu_information(CPUInformation& cpu_info); |
| static int cpu_load(int which_logical_cpu, double* cpu_load); |
| static int context_switch_rate(double* rate); |
| static int cpu_load_total_process(double* cpu_load); |
| static int cpu_loads_process(double* pjvmUserLoad, double* pjvmKernelLoad, double* psystemTotalLoad); |
| static int os_version(char** os_version); |
| static int generate_initial_environment_variable_events(); |
| static int system_processes(SystemProcess** system_processes, int* no_of_sys_processes); |
| }; |
| |
| #endif // SHARE_VM_JFR_PERIODIC_JFROSINTERFACE_HPP |